31232220331120 has 20 divisors (see below), whose sum is σ = 72614912270040. Its totient is φ = 12492888132416.

The previous prime is 31232220331099. The next prime is 31232220331171. The reversal of 31232220331120 is 2113302223213.

31232220331120 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195201376990 + ... + 195201377149.

It is an arithmetic number, because the mean of its divisors is an integer number (3630745613502).

Almost surely, 2^{31232220331120} is an apocalyptic number.

It is an amenable number.

31232220331120 is an abundant number, since it is smaller than the sum of its proper divisors (41382691938920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31232220331120 is a wasteful number, since it uses less digits than its factorization.

31232220331120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390402754152 (or 390402754146 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31232220331120 its reverse (2113302223213), we get a palindrome (33345522554333).

The spelling of 31232220331120 in words is "thirty-one trillion, two hundred thirty-two billion, two hundred twenty million, three hundred thirty-one thousand, one hundred twenty".